AU explained (No need to read)

This will be explained in the story if it's to confusing in the story come back here

Little explanation since I  just made this up

Soulmate AU

•Every person in Kunimi's family has a Soulmate

•If your soulmate hurts you a heart string will snap

•If too much heart strings snapped you will die since your heart will get disorted

•They need to choose a soulmate

•If they don't find a soulmate they will get sick or die

•Kindaichi is Kunimi's soulmate

•If a string snaps you will get trouble with breathing and it will feel like something got ripped out of your heart

Your opinion on this soulmate AU?